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Until now, all EL2 executable mappings were derived from their EL1 VA. Since we want to decouple the vectors mapping from the rest of the hypervisor, we need to be able to map some text somewhere else. The "idmap" region (for lack of a better name) is ideally suited for this, as we have a huge range that hardly has anything in it. Let's extend the IO allocator to also deal with executable mappings, thus providing the required feature. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.